Abstract

Fifty-three emission-spectrum lines of einsteinium have been observed. The interval between the ground level ⁵I₈ and the first excited level ³I₇ of Es ii has been found to be 938.66 cm⁻¹. The hyperfine structure confirms that the nuclear spin of ²⁵³Es is $\frac{7}{2}$. A value of μ_I = (+5.1±1.3)μ_N was obtained for the nuclear magnetic dipole moment.

© 1970 Optical Society of America

Hyperfine structure in the ²⁵³Es emission spectrum, III: Extension of the line list, levels of Es i and Es ii, nuclear magnetic-dipole and quadrupole moments*

Earl F. Worden, R. W. Lougheed, R. G. Gutmacher, and John G. Conway
J. Opt. Soc. Am. 64(1) 77-85 (1974)

Nuclear Magnetic Dipole Moment of ¹⁶⁵Ho

Jack Sugar
J. Opt. Soc. Am. 58(11) 1519-1523 (1968)

One-Electron Spectrum of Doubly Ionized Lutetium (Lu iii) and Nuclear Magnetic Dipole Moment of ¹⁷⁵Lu

Victor Kaufman and Jack Sugar
J. Opt. Soc. Am. 61(12) 1693-1698 (1971)

Hyperfine Structure of the (6p)² Configuration of ²⁰⁷Pb

Allen Lurio and Donald A. Landman
J. Opt. Soc. Am. 60(6) 759-763 (1970)

Hyperfine Structure, Nuclear Moments, and Isotope Shifts of ¹⁹⁷Tl and ¹⁹⁸Tl

Sumner P. Davis, Herbert Kleiman, David Goorvitch, and Tin Aung
J. Opt. Soc. Am. 56(11) 1604-1606 (1966)